Originally Posted by 
mattims
				 
			Looks the same as the one in my 1998 300TDI 110.
Mine was also non working when I got the car. It needed a new condenser and landrover were able to get one, but wanted $1200 for it.
I got a friend of my (auto elec / air con) to have a look and he was able to source the exact same part for $200. He looked over the system and it looks like all the working parts were just standard universal fit parts (nothing landrover specific except brackets to mount it and the internal air ducts).
For explanation of the thermostat outer ring.. 
mine seems to be when turned to 0 at the warmest (still seems to run compressor occasionally) and runs non stop when turned fully the other way. To be honest I am not completely convinced it is a thermostat, it might just be a time turning the compressor on and off.